body {
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
  background-color: #0a192f;
  color: #ffffff;
  height: 100vh;
  overflow: hidden;
  position: relative;
}

#particles-js {
  position: absolute;
  width: 100%;
  height: 100%;
  background-color: #0a192f;
  z-index: 1;
}

.content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  z-index: 2;
  width: 100%;
}

.title {
  font-size: 5rem;
  font-weight: bold;
  color: #ffffff;
  text-shadow: 0 0 10px rgba(30, 144, 255, 0.8);
  margin: 0;
  padding: 0;
  letter-spacing: 5px;
}

.subtitle {
  font-size: 1.8rem;
  font-weight: normal;
  color: #a8b2d1;
  margin: 10px 0 0 0;
  padding: 0;
  letter-spacing: 2px;
  white-space: nowrap;
}

#typing-effect {
  color: #64ffda;
  font-weight: bold;
  border-right: 3px solid #64ffda;
  padding-right: 5px;
  animation: blink-caret 0.75s step-end infinite;
}

@keyframes blink-caret {
  from, to { border-color: transparent }
  50% { border-color: #64ffda }
}

.footer {
  position: absolute;
  bottom: 20px;
  width: 100%;
  text-align: center;
  z-index: 2;
  font-size: 0.9rem;
  color: #a8b2d1;
}

/* 响应式样式 */
@media screen and (max-width: 768px) {
  .title {
    font-size: 3.5rem;
  }
  
  .subtitle {
    font-size: 1.4rem;
  }
}

@media screen and (max-width: 480px) {
  .title {
    font-size: 2.5rem;
    letter-spacing: 3px;
  }
  
  .subtitle {
    font-size: 1.1rem;
    letter-spacing: 1px;
  }
}